Lopolith

Source: Wikipedia, the free encyclopedia.
Volcanic neck
, pipe
7. Lopolith
As a general rule, in contrast to the smoldering volcanic vent in the figure, these names refer to the fully cooled and usually millions-of-years-old rock formations, which are the result of the underground magmatic activity shown.

A lopolith is a large

Duluth gabbro complex in northern Minnesota and adjacent Ontario
.

Lopoliths typically consist of large

Skaergaard complex of Greenland and the Humboldt lopolith of Nevada. The Sudbury occurrence has been attributed to an impact event
and associated crustal melting.

See also

References

  • Blatt, Harvey and Robert J. Tracy, 1996, Petrology: Igneous, Sedimentary and Metamorphic, 2nd ed., pp. 15-16, Freeman,
    ISBN 0-7167-2438-3
  • Guilbert, John M., and Park, Charles F., Jr. (1986) The Geology of Ore Deposits, Freeman,
    ISBN 0-7167-1456-6


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